Abstract
The passage which occurs in Plato's Philebus 25C8-E2 examines the relation between three of four classes of Being which are introduced at 23C. Problems with the text and explication of the passage are considered. Ibis paper attempts to illuminate two central issues of the later dialogues on which the interpretation of this passage rests, the significance of πέρς or the limiting class of Being, and the overall operation of συναγωγή or collection, characterizing the method of diairesis, the foundation of the later dialectic.This paper argues for the need to emend the text to read συμμισγομένων (or even συγγιγνομένων) since this is the significance required by the context; to take the referrent of έϗείνη to be πέρατος γέννα; and to understand άπείρου γέννα and πέρατος γέννα as the referrents of τούτων άμκροτέων.